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μSR study of time-reversal symmetry constraints and bulk superfluid response in Li0.95FeAs
We report zero-field (ZF) and transverse-field (TF) muon-spin rotation/relaxation (μSR) measurements on superconducting Li0.95FeAs (Tc ≃ 16.0 K) grown by a high-pressure self-flux method. The ZF-μSR data show ...
Multiple magnetic transitions in the trilayer nickelate Pr4Ni3O10 revealed by muon-spin rotation
A muon-spin rotation/relaxation (µSR) study of the trilayer Ruddlesden–Popper nickelate Pr4Ni3O10 was performed at ambient pressure and under hydrostatic pressure up to 2.2 GPa. Three magnetic transitions were identified ...
Structural characterisation of emerging functional materials: when you need muons and neutrons from across Europe to build a full picture
Researchers from Durham University and colleagues from Rutgers (The State University of New Jersey) and the University of Edinburgh have collaborated with teams from ISIS, the Institut Laue-Langevin (ILL) and the PSI Center for Neutron and Muon Sciences to carry out a full characterisation of the double perovskite Pb2MgReO6.
Unraveling spin density wave order in layered nickelates La3Ni2O7 and La2PrNi2O7 via neutron diffraction
The observation of pressure-induced superconductivity in two- and three-layer Ruddlesden-Popper nickelates has spurred ...
Polarization contrast neutron imaging enables operando visualization of iron plating in redox flow batteries
Visualizing multiphase (solid–liquid–gas) electrochemical transformations during operation is essential to advancing sustainable energy storage technologies. All-iron redox flow batteries represent a promising candidate ...
Thermodynamic Evidence for Pressure-Driven Evolution towards Weak-Coupling Superconductivity in Pb
The thermodynamic critical field Bc provides direct access to the superconducting condensation energy, yet its pressure dependence has been studied much less extensively than that of the transition temperature. Here, muon-spin-rotation relaxation measurements ...
Combination of searches for heavy vector boson resonances in proton-proton collisions at √s = 13 TeV
Demand for denser, lower-power data storage keeps rising, yet the metallic magnets behind most memory technologies dissipate energy through electrical currents. Magneto-electric insulators on the other hand offer an alternative...
Intricacies of frustrated magnetism in the Kondo metal YbAgGe
The combination of localized magnetic moments, their frustration and interaction with itinerant electrons is a key challenge of condensed matter physics. Frustrated magnetic interactions ...
Beyond Dzyaloshinskii-Moriya: anisotropy-driven compact spin textures for low-power spintronics
Demand for denser, lower-power data storage keeps rising, yet the metallic magnets behind most memory technologies dissipate energy through electrical currents. Magneto-electric insulators on the other hand offer an alternative...
Toward Hydrogen Isotope Separations through Strong Hydrogen Adsorption at Open Copper(I) Sites in an Ultramicroporous Metal−Organic Framework
Metal−organic frameworks with coordinatively unsaturated metal sites (open metal sites) capable of engaging in orbital interactions with π-acidic gases are of interest for enabling ambient-temperature gas separations, such as hydrogen isotope separations. In view of the weakly π-acidic nature of H2, we sought...
Lord of the data
Stefan Ritt works at the very limits of what can be measured. He has now been awarded the IEEE NPSS Computer Applications in Nuclear and Plasma Sciences Award for creating and leading the MIDAS DAQ system.
Surface-confined spiral state with a doubled magnetic period in Cu2OSeO3
Magnetism in solid materials originates from tiny atomic “compasses” called electron spins. In many magnetically ordered compounds, these spins simply align parallel or antiparallel to each other. However, in more complex systems they can arrange into ...
Alkali-Metal Interlocking of 2D V4O10 Sheets Defines Discretized Interlayer Shear Relationships
Low-dimensional materials manifest structural anisotropy, quantum confinement, and tightly bound excitonic states, which make them attractive building blocks that can be assembled within three-dimensional laterally stitched heterostructures, stacked van der Waals solids, and complex moiré superlattices ...
Cascade of Spin Moiré Superlattices with In-Plane Field in Triangular Lattice Semimetal EuAg4Sb2
EuAg4Sb2 is a rhombohedral europium triangular lattice material that exhibits a rich phase diagram of spin moiré superlattices (SMS) and single-q magnetic phases. In this paper, we characterize ...
Experimental observation of short-range magnetic correlations in amorphous Nb2O5 and Ta2O5 thin films
We use muon spin rotation/relaxation/resonance (μSR) to investigate the magnetic properties of niobium pentoxide (Nb2O5) and tantalum pentoxide (Ta2O5) thin films. In both oxides, we observe a magnetic response at the lowest available temperature of 2.8 K ...
Vanishing ordered moment in the frustrated triangular lattice antiferromagnet CuNdO2
The steady decline of neutron imaging (NI) facilities—driven in part by the shutdown of several research reactors—has increased the need to maximize the use of existing infrastructure. In this context, a collaborative effort between PSI-CNM, PSI-NES, and EPFL-LRS has led to the development ...
Collaborative Development of a New Neutron Imaging Beamline at the Zero-Power CROCUS Reactor
The steady decline of neutron imaging (NI) facilities—driven in part by the shutdown of several research reactors—has increased the need to maximize the use of existing infrastructure. In this context, a collaborative effort between PSI-CNM, PSI-NES, and EPFL-LRS has led to the development ...
Exploring 3d systems for quantum spin liquids
Using neutron and muon experiments, a team from South Korea, the USA, the Paul Scherrer Institute (PSI), and ISIS investigated the structure under ambient conditions and dynamics of a magnetic field-induced intermediate ...
Emergence of a Fluctuating Ground State in Y-Kapellasite under Pressure
Y-kapellasite [Y3Cu9(OH)19Cl8], which hosts an original anisotropic kagome sublattice, is a promising candidate for studying elusive and complex correlated physics. It exhibits a theoretically predicted in-plane (1/3; 1/3) magnetic order, but its magnetic interaction values place it close to a phase boundary to a spin liquid state ...
Green biomass as a sustainable source of protein
The food industry is increasingly focusing on sustainable products. Proteins from green biomass are a promising option, as a research team involving the MLZ has discovered. These can be used, for example, as stabilisers in emulsions, such as in plant-based alternatives to yogurt, milk, ice cream, or cheese.
Versatile Magneto- Dielectric Response of Epitaxial Thin Films of the High Entropy Oxide Perovskite Nd(Cr0.2Mn0.2Fe0.2Co0.2Ni0.2)O3
We report the dielectric and magnetic properties of epitaxial thin films of the high entropy oxide (HEO) perovskite Nd(Cr0.2Mn0.2Fe0.2Co0.2Ni0.2)O3, which orders magnetically below Tmag ≈ 190 K.
At T ≫ Tmag, the dielectric response reveals ...
Resolving Complex Multiscale Structure of Magneto- and Electroactive Polymer Composites With an Ionic Liquid
A multiscale understanding of the structure of ionogels – nanoparticle-free polymer composites incorporating ionic liquids – is essential for enhancing their macroscopic functional properties and unlocking their potential in critical applications such as energy storage, sensing, and actuation. We establish ...
Algebraic Loop Liquid in the Pyrochlore CsNiCrF6
The β-pyrochlore CsNiCrF6 is a charge ice—each tetrahedron of the pyrochlore lattice is occupied by two Ni2+ and two Cr3+ according to an ice rule, resulting in fully packed same-species loops with power-law length distribution. Using inelastic neutron scattering and numerical simulations, we show ...
Oxygen-isotope effect on the density wave transitions in La3Ni2O7
The isotope effect is a powerful probe of electron-phonon interactions in solid-state systems, offering key insights into how atomic mass influences emergent quantum states. Here, the impact of oxygen-isotope substitution (16O→18O) on charge- and spin-density wave (CDW and SDW) transitions in the double-layer Ruddlesden-Popper nickelate La3Ni2O7 is investigated ...
Pressure and oxygen-isotope substitution on density-wave transitions in La4Ni3O10
Understanding the interplay between magnetism and superconductivity in nickelate systems is a key objective in condensed matter physics. Gaining microscopic insights into magnetism—particularly as it emerges near superconductivity—requires a synergistic approach that combines complementary experimental techniques with controlled tuning of external parameters. In this paper, we present ...
Powder-level carbide modification controls HIP grain growth and enhances fatigue in reused additively manufactured superalloy
Inconel 718 dominates laser powder bed fusion (PBF-LB/M) builds as the benchmark Ni superalloy for its γ′/γ″ hardenability, weldability, and qualification pedigree, yet its fatigue resistance remains limited by porosity, tensile residual stresses, and microstructural heterogeneity ...
Robust AC Vector Sensing at Zero Magnetic Field with Pentacene
Quantum sensors based on electronic spins have emerged as powerful probes of microwave-frequency fields. Among other solid-state platforms, spins in molecular crystals offer a range of advantages, from high spin density to functionalization via chemical tunability. Here, we demonstrate ...
Magnetic Signature of Chiral Phonons Revealed by Neutron Spectroscopy in Ferrimagnetic Fe1.75Zn0.25Mo3O8
Lattice vibrations can carry angular momentum and magnetic moments under broken inversion or time-reversal symmetry, forming so-called chiral phonons. While such excitations have been explored in nonmagnetic systems via optical probes, their direct detection in magnetic materials and coupling to spin excitations remain largely unexplored. Here, using neutron spectroscopy, ...
Topological metal-insulator transition within the ferromagnetic state
A major challenge in condensed matter physics is integrating topological phenomena with correlated electron physics to leverage both types of states for next-generation quantum devices. Metal-insulator transitions are central to bridging these two domains while simultaneously serving as on-off switches for electronic states. Here, we demonstrate ...
How hydrogen affects titanium implants
Researchers use Swiss Spallation Neutron Source SINQ to study how medical implants change inside the body.